Sierra Fuel Pump Kit 18-7817 for MerCruiser
- Brand:
- Sierra
- Part no:
- 18-7817
Where to buy
View on Amazonpaid link
This is a Sierra fuel pump kit with part number 18-7817, made as a replacement for the MerCruiser pump carrying the number 21-857005A 1. It also cross-references a run of Chrysler and Mercury numbers: 21-42990A7, A8, A9, A10 and 21-857005A1. That suggests the one Sierra kit is meant to cover several revisions of the original pump. Match the number on your old pump against that run to confirm the fit.
Our take
The cross-reference runs from 21-42990A7 through A8, A9 and A10 to 21-857005A1, so this one Sierra kit is meant to stand in for several revisions of the Mercury pump. Read the number on your old pump against that run before you commit.